/*
 * Package il.ac.biu.cs.grossmm.test.SimpleProtocol
 * File Request.java
 * 
 * This is a part of presence service framework API. 
 * See javadoc for more information.
 *  
 * Copyright (C) 2006 Grossmann Mark
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package il.ac.biu.cs.grossmm.foo.protocol;

import java.util.HashMap;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public abstract class Request extends Message {
	
	
	static int counter = 0;
	static Lock lock = new ReentrantLock(); 

	
	static HashMap<String, RequestFactory> factories
	 	= new HashMap<String, RequestFactory>();
	
	protected Request()
	{
		int t;
		lock.lock();
		t=counter++;
		lock.unlock();
		
		tid = Integer.toHexString(t);
	}
	
	protected Request(String tid) {
		this.tid = tid;
	}
	
	
	
	public abstract String getCommand();
	
	public abstract String[] getParameters();
	
	public CharSequence serialize() {
		return toStringBuffer();
	}
	
	public String toString() {
		// return toStringBuffer().toString();
		String[] params = getParameters();
		StringBuffer sb = new StringBuffer(getCommand());
		
		for( String param : params ) {
			sb.append(" ").append(param);
		}
		
		return sb.toString();
	}
	
	public Response okResponse() {
		return new Response(this, ResponseCodes.OK);
	}
	
	public StringBuffer toStringBuffer() {
		StringBuffer sb = new StringBuffer(tid);
		
		sb.append(PARAM_DELIMETER).append(getCommand());
		
		String[] params = getParameters();
		
		if( params != null ) {
			for (int i = 0; i < params.length; i++) {
				sb.append(PARAM_DELIMETER).append(params[i]);
			}
			
			sb.append(MSG_DELIMETER);
		}
		
		return sb;
	}
}
